The Effect of the Crude Terpenoids Compounds of Melia Azedrach Leaves and Fruits on Some Biological Aspects of Whitefly Bemisia tabaci

This study was carried out to determine the effects of crude terpenoid compound extracts Melia azedarach L. leaves and fruits on some biological aspects whitefly Bemisia tabaci (Genn.) under laboratory conditions 25 ± 2°C relative humidity 65-70%. The results indicated a significant effect eggs immature stages when treated with 0.5, 1, 1.5, 2 mg/ml fruits. mortality rate increased concentration. It reached 98.68, 100, 95.70, 86.30, 42.68% for eggs, 1st, 2nd, 3rd nymphal instars, pupa, adults, respectively, at concentration extract. At same time, it 94.86, 100,100, 87.89, 44.90% fruit Also, proportion adults who emerged from sprayed reduced 91.53% 95.72% extracts, respectively. While developmental period 23.50 24.00 days fruits, compared 21.00 20.83 control.